RESTRUCTURING CHARGES - Additional Information (Details) $ in Millions	9 Months Ended	21 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Payments for restructuring	$ 20.9
EA Integration Restructuring Program
Restructuring Cost and Reserve [Line Items]
Payments for restructuring	18.4	$ 60.9
EA Integration Restructuring Program | Minimum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges	90.0	90.0
Effect on future cash flows	90.0
EA Integration Restructuring Program | Maximum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges	95.0	95.0
Effect on future cash flows	95.0
EA Integration Restructuring Program | Employee-related costs
Restructuring Cost and Reserve [Line Items]
Payments for restructuring	17.6
EA Integration Restructuring Program | Employee-related costs | Minimum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges	70.0	70.0
EA Integration Restructuring Program | Employee-related costs | Maximum
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges	75.0	75.0
EA Integration Restructuring Program | Lease termination costs
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges	10.0	10.0
EA Integration Restructuring Program | Other
Restructuring Cost and Reserve [Line Items]
Expected restructuring and related charges	10.0	$ 10.0
Payments for restructuring	$ 0.8